| Category | EN54-3 Type A sounder (Indoor) |
| Working voltage | DC 16-30 V (JBE protocol pulse amplitude) DC 18.5-28.5V (24V DC power bus) |
| Connection | 2-wire JBE communication bus, no polarity |
| 2-wire 24V DC power bus | ≤ 0.3mA @24V |
| Wiring | Twisted pair, max. wiring gauge 2.5 mm2 |
| Current JBE comm loop | ≤ 0.25mA @24V |
| Current 24V DC bus | ≤ 50 mA @24 V ;≤1.2W @24V(When active) |
| Sound pressure level | 100 dB(A)@1m;1-2kHz Swept Tone (0.25 Hz) |
| Working temperature | -10 to +55℃ |
| Storage temperature | -20 to +60℃ |
| Environment Humidity | ≤ 95% RH (no condensation nor icing) |
| Addressing method | Addressing tool JBE-AT1 |
| Address range | 1-200 |
| Dimensions | 100 mm×67 mm |
| Weight | 0.1 kg(including base) |
| IP rating | IP31 |
| Standards | EN 54-3:2001 EN 54-3:2001/A1:2002 EN 54-3:2001/A2:2006 |
| Declaration of Perf. | DoP-0370-CPR-3812-1 |
| Terminals | Connection |
| 1&2 | Signal loop L1, L2 (no polarity) |
| 3 | 24Vcc power line: (G) Negative |
| 4 | 24Vcc power line: (V) Positive |
